23,076 research outputs found
The Community Earth System Model (CESM1.2.2) Ensemble Simulation (845 - 859 CE) for publication Mackay et al., 2022
No full textTemperature (TS) and precipitation (PRECT) of 20 ensemble runs during 849 - 859 CE from the Community Earth System Model 1.2.2. The dataset is used for the publication "The 852/3 CE Mount Churchill eruption: examining the potential climatic and societal impacts and the timing of the Medieval Climate Anomaly in the North Atlantic Region" (Mackay et al., 2022)
CE Challenges: Work to Do
No full textCE has been used for more than two decades now. Despite many successes and advantages, there are still many challenges to be addressed. These challenges are both technical and organisational. In the paper we will address the current challenges of CE. Many challenges are related to the exchange of data and knowledge and to the systems that make data and knowledge exchange possible. Although much progress has been made in enabling extensive data and knowledge exchange and use, much remains to be wished. For example, there are still barriers to data exchange. Technically, these barriers may consist of different formats, differences in infrastructures and systems, and different semantics. There are also organisational and political barriers. For example, investment in information system may heavily impact upstream suppliers, while revenues of better information exchange may predominantly be gained by downstream actors. Without sharing costs and revenues, chain-wide information exchange will not be easily realised. Another barrier is the possible lack of willingness to share information, because of potential misuse of knowledge and loss of power. The paper is organised as follows. First we will describe the current manifestation of CE as described in a recent book. Second, we will list current trends in CE. Third, we will present some Critical Success Factors (CSFs) that are considered relevant for implementing and adapting CE practices. Last, we indicate some research and practical questions to be addressed, especially for areas that have a high potential and actual impact. </p
Staging the International Embrace: George Leslie Mackay Narratives on Taiwanese Stages
No full textJosh Stenberg considers three Taiwanese productions of the last ten years (puppetry, Western opera, xiqu), which have dramatized the life of nineteenth-century Presbyterian missionary George Leslie Mackay. The article connects the way in which a Canadian white foreigner is represented on stage with Taiwan’s anxiety surrounding its lack of international recognition, arguing that Mackay has been enlisted in Taiwanese nation-building theatre as a wish-fulfilling stand-in for desirable foreigner behaviour. Since the legitimacy and characteristics of an autonomous Taiwanese consciousness (like Canadian identity) are disputed and evolving, this case serves to examine theatre as a medium during an embryonic stage in the production of nationhood: the Mackay productions are theatre for a nation that—depending substantially on foreign attitudes—may or may not yet be produced. Furthermore, attention to this Canadian character abroad broadens the discussion of Canadian intercultural theatre by drawing attention to how, since identities are dialogic, Canadians are not the only ones who get to decide who we are or what we mean.Dans cette contribution, Josh Stenberg examine trois productions taiwanaises des dix dernières années (théâtre de marionnettes, opéra occidental, xiqu) qui ont adapté pour la scène la vie de George Leslie Mackay, un missionnaire presbytérien du XIX e siècle. Dans son analyse, Stenberg établit un rapport entre la représentation dont fait l’objet sur scène un étranger canadien de race blanche et l’anxiété ressentie à Taïwan face au manque de reconnaissance de ce pays à l’échelle mondiale. Selon Stenberg, le théâtre taïwanais qui est au service de l’édification du pays se sert de Mackay pour représenter le comportement que l’on souhaite voir chez l’étranger. Puisque la légitimité et les caractéristiques d’une conscience taïwanaise autonome (comme l’identité canadienne) sont encore contestées et en pleine évolution, ce cas nous permet d’examiner le théâtre en tant que medium au cours du stade embryonnaire d’une nation en devenir, sachant que les pièces sur Mackay sont destinées à une nation qui—en grande partie selon les attitudes des étrangers—pourraient ne jamais voir le jour. Qui plus est, l’attention portée à ce personnage canadien à l’étranger sert à élargir la discussion sur le théâtre interculturel canadien en nous rappelant que puisque les identités sont dialogiques, les Canadiens ne sont pas les seuls à même de décider qui nous sommes et ce que nous signifions
32. Les pavillons Claudette-Mackay-Lassonde et Pierre-Lassonde
No full textLes pavillons Pierre-Lassonde et Claudette MacKay-Lassonde Ces deux pavillons, regroupés dans un seul édifice, constituent l’agrandissement de l’École Polytechnique. Le bâtiment de sept étages prend place dans la dénivellation naturelle du mont Royal, sur un site situé en contrebas de l’édifice d’origine de l’École Polytechnique. Ce projet a obtenu de nombreux prix et reconnaissances, dont la certification internationale Leadership in Energy and Environmental Design (LEED) Or du U.S. Green Bu..
Synthesis optimization and charge carrier transfer mechanism in LiLuSiO<sub>4</sub>:Ce, Tm storage phosphor
No full textLiLuSiO4:Ce and LiLuSiO4:Ce, Tm show very efficient charge carrier storage properties upon beta irradiation after samples have received treatment in vacuum. They outperform the commercial storage phosphor BaFBr(I):Eu2+ in many aspects. The influence of the synthesis conditions, Ce and Tm concentration, nonstoichiometry and codoping with Ca, Hf, Al and Ge are reported. Based on the results of the synthesis optimization, thermoluminescence (TL) emission and TL excitation spectra a mechanism of charge carrier transfer, storage, and recombination during irradiation and thermal or optical readout is proposed.Accepted Author ManuscriptRST/Fundamental Aspects of Materials and EnergyRST/Luminescence Material
Low emotional response to traumatic footage is associated with an absence of analogue flashbacks: An individual participant data meta-analysis of 16 trauma film paradigm experiments.
No full textMost people will experience or witness a traumatic event. A common occurrence after trauma is the experience of involuntary emotional memories of the traumatic event, herewith "flashbacks". Some individuals, however, report no flashbacks. Prospective work investigating psychological factors associated with an absence of flashbacks is lacking. We performed an individual participant data meta-analysis on 16 experiments (n = 458) using the trauma film paradigm to investigate the association of emotional response to traumatic film footage and commonly collected baseline characteristics (trait anxiety, current depression, trauma history) with an absence of analogue flashbacks. An absence of analogue flashbacks was associated with low emotional response to the traumatic film footage and, to a lesser extent, low trait anxiety and low current depression levels. Trauma history and recognition memory for the film were not significantly associated with an absence of analogue flashbacks. Understanding why some individuals report an absence of flashbacks may aid preventative treatments against flashback development
The impact of P(NDI2OD-T2) crystalline domains on the open-circuit voltage of bilayer all-polymer solar cells with an inverted configuration
No full textWe fabricated P(NDI2OD-T2)/PTB7 bilayer all-polymer solar cells with an inverted configuration, where the annealing temperature was systematically varied. The current density-voltage behavior was investigated and the structural properties of the P(NDI2OD-T2) layers were characterized. Absorption spectroscopy, surface morphology, and crystallite analysis showed that increasing phase segregation of P(NDI2OD-T2) films occurred as the annealing temperature increased. We found that, as the P(NDI2OD-T2) stacking improved, with larger domains, the open-circuit voltage decreased and the saturation dark current density increased. This work provides a guide for the processing of P(NDI2OD-T2) layers to maximize the power conversion efficiency of all-polymer solar cells. (C) 2015 Author(s).open1186sciescopu
Réimaginer nos interactions avec le monde numérique
No full textPour imaginer l’avenir du monde numérique, considérer la technologie seule ne suffit pas : nous devons penser nos interactions avec elle. Domaine de recherche visant à augmenter les capacités humaines grâce à celles de la machine, l’interaction humain-machine pose une question fondamentale : comment faire en sorte que les ordinateurs répondent, en toutes circonstances, aux besoins des personnes qui les utilisent ? Wendy E. Mackay nous guide dans l’exploration de ce vaste champ de réflexion, en nous présentant les fondements théoriques et les défis d’un domaine multidisciplinaire qui puise aussi bien dans les sciences naturelles et sociales que dans l’informatique, l’ingénierie et la conception
Data and code for: Variational Graph Author Topic Modeling
No full textThis is the tensorflow implementation of KDD-2022 paper "Variational Graph Author Topic Modeling" by Delvin Ce Zhang and Hady W. Lauw.
VGATM is a Graph Neural Network model that extracts interpretable topics for documents with authors and venues. Topics of documents then fulfill document classification, citation prediction, etc.
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Updated analytical solutions of continuity equation for electron beams precipitation – I. Pure collisional and pure ohmic energy losses
No full textWe present updated analytical solutions of continuity equations for power-law beam electrons precipitating in (a) purely collisional losses and (b) purely ohmic losses. The solutions of continuity equation (CE) normalized on electron density presented in Dobranskis & Zharkova are found by method of characteristics eliminating a mistake in the density characteristic pointed out by Emslie et al. The corrected electron beam differential densities (DD) for collisions are shown to have energy spectra with the index of −(γ + 1)/2, coinciding with the one derived from the inverse problem solution by Brown, while being lower by 1/2 than the index of −γ/2 obtained from CE for electron flux. This leads to a decrease of the index of mean electron spectra from −(γ − 2.5) (CE for flux) to −(γ − 2.0) (CE for electron density). The similar method is applied to CE for electrons precipitating in electric field induced by the beam itself. For the first time, the electron energy spectra are calculated for both constant and variable electric fields by using CE for electron density. We derive electron DD for precipitating electrons (moving towards the photosphere, μ = +1) and ‘returning’ electrons (moving towards the corona, μ = −1). The indices of DD energy spectra are reduced from −γ − 1 (CE for flux) to −γ (CE for electron density). While the index of mean electron spectra is increased by 0.5, from −γ + 0.5 (CE for flux) to −γ + 1(CE for electron density). Hard X-ray intensities are also calculated for relativistic cross-section for the updated differential spectra revealing closer resemblance to numerical Fokker–Planck (FP) solutions
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